Using Backup Exec 12.5 I have never had any problems with creating a Backup-to-disk folder, allowing 16 concurrent jobs, and then running all our various backup jobs to this folder at the same time. With over 1.6TB to back up over a period of 2 days, this makes for a very effective backup.
This weekend I have hit a problem whereby all the jobs I would expect to run simultaneously queue, with the exception of 1 job which will be allowed to run. They will run in a sequential order - wait for 1 job to complete then move on to the next one in the queue. The backup-to-disk folder still has '16 concurrent jobs' registered, but only 1 job will run to the folder at a time. Furthermore, if I create a new Backup-to-Disk folder, and run a test backup to this second folder while backups to the first folder are running/queued, the backup to this second folder also queues, so it doesn't appear to be a B2D-folder-specific issue.
500 points to anyone who can offer a resolution. Thanks.